BMI Calculator

Weight (lbs): Height (inches):

BMI (Body Mass Index) is a measure of body fat based on your weight and height. It’s a common screening tool used to estimate a healthy weight range for adults. Here’s a breakdown of the standard BMI ranges and what they generally indicate:

BMI Categories

Underweight: Below 18.5
- May indicate malnutrition, an eating disorder, or another underlying health condition.
Healthy Weight: 18.5 – 24.9
- Generally considered the healthiest weight range for most adults.
Overweight: 25 – 29.9
- Increased risk of developing health problems like heart disease, type 2 diabetes, and high blood pressure.
Obesity: 30 or higher
- Significantly increased risk of developing serious health conditions.

Within the Obesity Category:

Class 1 Obesity: 30 – 34.9
Class 2 Obesity: 35 – 39.9
Class 3 Obesity: 40 or higher (also referred to as severe or extreme obesity)

Important Considerations

General Guideline: BMI is a screening tool, not a diagnostic tool. It’s a good starting point, but it doesn’t tell the whole story about your health.
Muscle Mass: BMI may overestimate body fat in athletes and people with a lot of muscle mass, as muscle weighs more than fat.
Body Composition: BMI doesn’t distinguish between fat and muscle, nor does it account for fat distribution (where fat is stored in the body).
Age and Sex: BMI ranges can be interpreted slightly differently for children, adolescents, older adults, and pregnant women.
Ethnicity: Some ethnic groups may have different health risks at the same BMI.

It’s best to discuss your BMI with a healthcare professional. They can help you interpret your BMI in the context of your overall health, considering factors like your:

Waist circumference: A measure of abdominal fat, which is a risk factor for certain diseases.
Body fat percentage: A more accurate measure of body fat than BMI.
Family history: Your family history of health conditions.
Lifestyle factors: Your diet, exercise habits, and other lifestyle choices.

By understanding your BMI and discussing it with your doctor, you can make informed decisions about your health and take steps to achieve and maintain a healthy weight.